#include <cstdio>
#include <string.h>
//
// Created by Asus on 2025/5/14.
//

using namespace std;

void printBook(struct Books book);

struct Books {
    char title[50];
    char author[50];
    char subject[100];
    int book_id;
} book;

int main(char *argv[]) {
    Books book1;
    book1.book_id = 0;
    strcpy(book1.title, "<UNK>");
    strcpy(book1.author, "<UNK>");
    strcpy(book1.subject, "<UNK>");

    printBook(book1);

    return 0;
}

void printBook(struct Books book) {
    printf("Title: %s\n", book.title);
    printf("Author: %s\n", book.author);
    printf("Subject: %s\n", book.subject);
    printf("Book ID: %d\n", book.book_id);
}